Surf Forecasts:
Jaconé surf forecast from 15 Aug 2026:
- Best quality surf: Saturday 15 Aug, 12PM (local time) - 8ft (2.4m), 13s period, S swell with cross-offshore winds.
- Most powerful swell: Saturday 15 Aug, 12PM (local time) - 8ft (2.4m), 13s period, S swell with 1,968 kJ wave energy.
- Next surfable swell (1★+): Saturday 15 Aug, 12PM (local time) - 8ft (2.4m), 13s period with S swell.
Best Forecast Surf Conditions for Jaconé this week:
The surf forecast for Jaconé over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Aug 15) at 12PM. The primary swell is predicted to be 2.4m and 13s period with a secondary swell of 0.3m and 10s. Another secondary swell of 1.2m and 7s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Jaconé in the next 16 days are 2.4m 13s and forecast to arrive on Saturday (Aug 15) at 12PM. Winds are predicted to be cross-offshore at the time the swell arrives.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12PM (Sat 15th Aug) | 8ft (2.4m) 13s |
| Best Surf | 12PM (Sat 15th Aug) | 8ft (2.4m) 13s |
| Most Powerful | 12PM (Sat 15th Aug) | 8ft (2.4m) 13s |
Table - best surf conditions forecast for Jaconé over the next 16 days.
The Lowdown
Alright, let’s break it down for the crew who think in feet and miles per hour.
The 16-day window starts quiet, but there are a couple of days that’ll wake you up.
First action is Saturday morning, August 15th, at Jaconé. We’ve got an 8ft south swell rolling in with a 13-second period – that's some real groundswell energy (2183 combined). The wind is offshore from the ENE at 12 mph, keeping the waves clean. This is excellent, but at 8ft, it’s strictly for the experienced surfers. Water temp is about 73°, which is roughly 2° warmer than normal for mid-August – a nice warm welcome. Crowds are possible here.
Sunday morning drops to 5ft from the south, with a moderate offshore wind, but the energy is way down. The next week, from August 17th to the 23rd, is mostly flat and weak. Small, short-period windswell (3ft to 5ft) with periods of 7-8 seconds. A few mornings have clean offshore wind, but the waves are small and weak. It’s a slow stretch.
Then it picks up again around Monday, August 24th. A new south swell brings 8ft with a 12-second period and 1544 energy. The cross-shore wind adds a bit of chop, so it’s not perfect, but the size is solid for the experienced.
Tuesday, August 25th offers 6ft from the SSW with a clean cross-offshore wind, and energy around 957. That’s a much cleaner option.
The real standout is Wednesday afternoon, August 26th. Jaconé gets a clean 8ft south swell, 12-second period, with light variable wind at only 6 mph. The energy is cranking at 1774. This is primo for the experienced surfer.
And Thursday morning, August 27th delivers glassy conditions with a 6ft south swell and a 13-second period. Wind is almost nothing from the SSW. The energy is still strong at 1191. That’s a morning to remember.
After that, it fades into small, weak, onshore-affected junk through the end of August, with a tiny 1ft south swell and glassy conditions on the 30th, but no power.
Mark your calendar for Wednesday afternoon, August 26th, and Thursday morning, August 27th. That’s the real deal.
Rusty.
Short Range ForecastLight rain (total 4mm), mostly falling on Sat afternoon. Warm (max 26°C on Mon afternoon, min 18°C on Sun night). Mainly fresh winds. | Days 4-6 Weather SummaryMostly dry. Warm (max 29°C on Wed morning, min 20°C on Tue morning). Wind will be generally light. | ||||||||||||||||||||
Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | S 13 | SSE 13 | S 12 | S 12 | S 11 | E 7 | S 11 | E 7 | E 7 | E 7 | E 7 | E 7 | ENE 7 | E 7 | E 7 | ENE 7 | E 7 | E 7 | E 8 | SW 5 | SW 6 |
Wave Graph  | |||||||||||||||||||||
 kJ | 2166 | 1844 | 830 | 517 | 348 | 320 | 231 | 232 | 220 | 124 | 99 | 117 | 210 | 124 | 61 | 77 | 77 | 124 | 94 | 73 | 38 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | cross-off | off | cross-off | off | off | cross-off | off | off | cross-off | off | off | cross-off | off | cross-on | cross-off | off | off | cross-off | cross-on |
High Tide | 4:19PM0.92m | 4:02AM1.05m | 4:36PM0.88m | 4:40AM0.99m | 4:57PM0.85m | 5:22AM0.91m | 5:23PM0.81m | 6:13AM0.82m | 5:55PM0.77m | 7:37AM0.74m | 6:40PM0.71m | 10:56AM0.75m | 8:12PM0.67m | ||||||||
Low Tide | 10:18AM0.03m | 10:23PM0.27m | 10:55AM0.13m | 11:00PM0.26m | 11:33AM0.24m | 11:41PM0.26m | 12:15PM0.34m | 00:30AM0.28m | 1:08PM0.44m | 1:31AM0.30m | 2:17PM0.50m | 2:44AM0.31m | 3:41PM0.52m | ||||||||
 |  |  |  |  |  | | | | | | | | | | | | | | |  | |
 | 6:15 | — | — | 6:15 | — | — | 6:13 | — | — | 6:13 | — | — | 6:11 | — | — | 6:11 | — | — | 6:11 | — | — |
 | — | 5:34 | — | — | 5:34 | — | — | 5:35 | — | — | 5:35 | — | — | 5:35 | — | — | 5:36 | — | — | 5:36 | — |
mm | — | 4 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 23 | 21 | 19 | 22 | 22 | 19 | 25 | 26 | 19 | 26 | 28 | 23 | 29 | 29 | 26 | 23 | 24 | 23 | 33 | 30 | 22 |
Feels °C | 23 | 21 | 16 | 19 | 18 | 15 | 23 | 23 | 16 | 25 | 27 | 22 | 29 | 28 | 26 | 24 | 25 | 22 | 33 | 31 | 21 |
Swell 1 Height (m) Direction Period (s) | S 13 | SSE 13 | S 12 | S 12 | S 11 | S 11 | S 11 | S 11 | S 10 | E 7 | S 10 | S 9 | E 7 | E 7 | S 10 | E 7 | E 7 | SSW 10 | E 8 | E 8 | SW 6 |
| kJ | 2166 | 1844 | 830 | 517 | 348 | 284 | 231 | 184 | 106 | 102 | 49 | 15 | 65 | 49 | 8 | 58 | 47 | 20 | 94 | 45 | 38 |
Swell 2 Height (m) Direction Period (s) | E 10 | — | ESE 12 | ESE 13 | ESE 12 | ESE 12 | ESE 11 | SE 11 | E 11 | S 10 | — | SSE 8 | S 10 | S 10 | SE 12 | S 10 | S 9 | SE 11 | SSW 9 | SSW 8 | SSW 8 |
| kJ | 17 | — | 26 | 31 | 28 | 13 | 12 | 5 | 2 | 49 | — | 7 | 8 | 8 | 6 | 7 | 2 | 5 | 45 | 24 | 22 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | SE 12 | SE 8 | SE 8 | SE 8 | SE 12 | SE 12 | SW 8 | S 17 | S 16 | E 8 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | 6 | 3 | 3 | 3 | 6 | 5 | 3 | 5 | 5 | 19 |
Wind waves Height (m) Direction Period (s) | — | ESE 11 | ESE 7 | ESE 7 | E 7 | E 7 | E 7 | E 7 | E 7 | E 7 | E 7 | E 7 | ENE 7 | E 7 | E 7 | ENE 7 | E 7 | E 7 | — | SW 5 | — |
| kJ | — | 23 | 294 | 208 | 255 | 320 | 172 | 232 | 220 | 124 | 99 | 117 | 210 | 124 | 61 | 77 | 77 | 124 | — | 73 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 10 | 88 | 53 | 216 | 44 | 0 | 53 | 25 | 0 | 10 | 0 | 0 | 0 | 0 | 34 | 0 | 0 | 0 | 0 | 63 |
Best forecast wave conditions in Rio de Janeiro | |||||||||||||||||||||
Best forecast wave conditions in Brazil | |||||||||||||||||||||
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Information about the Jaconé Surf forecast
The above surf forecast table for Jaconé provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Jaconé can be found by selecting the local surf guide option on the grey menu. Our Jaconé surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Jaconé) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).
Further information to help with frequently asked questions about our surf forecast for Jaconé may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.
Jacone is 14 km (9 miles) from the city of Saquarema. If you plan a holiday in Rio de Janeiro, look for hotels and other accommodation in Saquarema. Saquarema has rooms for a wide range of budgets as well as car hire and transport links.
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